Facio ut des

I. In the civil law. I do that you may give, — a form of words used to express that kind of contract by which a man agrees to do a thing for a price or thing to be given him by another. Facio ut facias: I do that you may do, — words used to express that kind of contract in which a person agrees to do some act for another, if the other will do some other act for him.